Note 12 - Financial Guaranty Insurance Contracts Premium Receivable and Unearned Premium NPV and Accretion (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Premiums Written Accretion	Dec. 31, 2010 Premiums Written Accretion	Dec. 31, 2011 Premiums Earned Accretion	Dec. 31, 2010 Premiums Earned Accretion	Dec. 31, 2011 Policy Acquisition Costs Accretion	Dec. 31, 2010 Policy Acquisition Costs Accretion
Premiums receivable	$ 34.3	$ 44.0	$ 54.4
Unearned premiums	39.8	60.5
Financial Guarantee Insurance Contracts, Premium Received over Contract Period, Premium Receivable, Accretion [Abstract]
Accretion of Premium Receivable and Unearned Premium				$ 1.2	$ 1.5	$ 1.2	$ 1.5	$ 0.3	$ 0.3
Premium Receivable, Weighted Average Risk Free Discount Rate	2.60%